Apparatus for treating surfaces oe roads



B. E. SAVAGE AND L. H. MINER.

. APPARATUS FOR TREATING SURFACES 0F ROADS.

APPLICATION FILED DEC. 29,1910. RENEWED JAN. 21,1916. 1,326,029, IPatfin'ted flat. 28,5519.

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B. E. SAVAGE AND L. H. MINER.

APPARATUS FOR TREATING-SURFACES 0F ROADS.

APPUCATION FILED -0Ec.2a. i910. RENEWED JAN. 21, 1916.

1,320,029. Patented 0m. 28,1919.

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THE COLUMBIA PLANOGRAPH cn.. WASHINGTO 1111 c.

UNITED STATES PATENT OFFICE.

IBERTRAM E. SAVAGE, OF WORCESTER, AND LOUIS I-L. MINER, OF HAVE-RHILL,MASSACHUSETTS.

APPARATUS FOR TREATING SURFACES 0F ROADS.

Specification of Letters Patent.

Patented Oct. 28, 1919.

Application filed December 29, 1910, Serial No. 599,968. Renewed January21, 1916. Serial No. 73,501.

To all whom it may concern:

Be it known that we, BERTRAM E. SAVAGE and LOUIS H. MINER, citizens ofthe United States, residing at Worcester and Haverhill, in the countiesof WVorcester and Essex, respectively, both in the State ofMassachusetts, have invented a new and useful Apparatus for TreatingSurfaces of Roads, of which the following is a specification.

This invention relates to a machine or device for distributing asphaltumoil or other oils or the like of a suitable character on the surface ofstreets and roads.

The principal objects 'of the invention are to provide a construction inwhich the distributing pipes for depositing the oil on the street areconnected with the oil tank through a pump which is located between thetank and pipe and which is carried along with them so that the pipingbetween these parts can be permanent and of comparatively small lengthand inexpensive in construction and maintenance, and to provideconvenient means whereby the same source of steam will operate the pumpand heat the tank; and also dampen and heat the road surface in advanceof the distribution of oil thereon. Further objects and advantages ofthe invention will appear hereinafter.

Reference is to be had to the accompanying drawings,

Figure 1 is a side view of a machine constructed in accordance with thisinvention.

Fig. 2 is a plan of a portion of the same;

Fig. 3 is a rear end elevation thereof;

Fig. 4 is an enlarged detail view of one of the distributing nozzlespartly in section, and

Fig. 5 is a sectional view on the line 55 of Fig. 2 showing the rear ofthe tank and its connections.

The invention is shown as applied to a truck body having wheels 10 forsupporting the same and adapted to be drawn by horses, or by a steamroller or the like. Mounted above the wheels are a pair of longitudinalbeams 11 constituting a support and having metallic supporting pieces 12extending upwardly therefrom, on which is carried the oil tank 13. Thistank is as usual provided with a manhole 14 at thetop. It is alsoprovided with a semi-circu-- lar steam jacket 15 covering the bottom.thereof. By the use of such a steam jacket the oil within the tank isthoroughly heated without going to the expense of placin steam pipeslongitudinally through the tank, and at the same time the diiiicultyexperienced by the hardening of the oil about the nozzle pipes isentirely avoided. The tank is shown as anchored to the rear of thesupports 11 by tie-rods 16 extending up around the man hole projection14.

Mounted on the support 11 immediately behind the tank and at a levelbelow the support are brackets 20 which carry apump 21. This is a steampump and is supplied with steam from a steam pipe 22 carried by thesupports and connected with any suitable source of supply which movesalong with the device. This supply pipe is connected with the steam pumpthrough pipe 23 and is also connected with the jacket 15 by a pipe 24.The tank is provided with an outlet and inlet pipe 25 near the rear andbottom thereof having a valve 26 for controlling the same. This isconnected by an outlet pipe 27 with the pump, the said pipe 27constituting the inlet of the pump. Extending from the pipe 25 on theopposite side from the pipe 27 is a pipe 28 having a valve 29 andadapted to be connected with an oil tank, or the like so that oil can beintroduced into the pump or into the tank from an outside sourcewhenever desired. The main steam pipe 22 is provided with a by-pass 30which extends into the pipe 28 for the purpose of providing for forcingsteam into the tank, and for cleaning out the pipe and for forcing asupply of steam through the pump to force oil out of the pump and toclean out the interior thereof. The pump delivers the oil through a pairof pipes 31 to a transverse pipe 32 which in the present instance isprovided with three vertical connections 33, each having a valve 34therein. At the bottom these are connected with the several sections 35of a distributing pipe. Valves 36 are located between each two sectionsof this pipe. On account of these connections and valves any one or moresections of the distributing pipe can be cut off at any time withoutinterfering with the others. A by-pass 300 is provided for cleaning outthe pipes 31 and 32. The distributing pipe is provided with a pluralityof fittings 37 each having a plug 38 therein supplied with a nozzle 39.This nozzle preferably is provided with a conical inwardly extending end40 having perforations 41 in the inclined surface so that the streams ofoil will be caused to converge toward each other and interfere with eachother in such a way as to cause the streams to be converted into aspray.

It is to be observed that with this construction the steam pump islocated between the supply tank and the distributing pipe, so that theamount of piping is reduced to a minimum, and it is permanently locatedin position when once set up. This is a material improvement over thoseforms of road machines in which the oil is distributed from a tank bymeans of a pump carried along on a separate vehicle. At the same timethe advantages of the other system, whereby great flexibility inoperation is secured are retained by this system, because of the pipe 28which can be connected with a traveling supply if desired.

We have discovered also that while the dampening, usually effectedbefore the oil is distributed, is a desirable feature, it is carried outin a very clumsy and ineflicient way in ordinary usage. This is due tothe fact that the road surface is sprinkled independently of thedistribution of the oil, and sometimes it partially dries before the oilis applied, and at other times too great quantities are used. Moreover,the application of the water cools the road surface in some cases,whereas the road surface should be heated in order that the oil may notchill immediately, and may have time to flow into the crevices anddepressions in the road before it hardens.

In order to obviate these difficulties, and at the same time to providefor cleaning the dust away from the surface of the road before the oilis applied, the following system is employed: Connected with the steamsup ply pipe 22 is a branch 43 which is connected with a horizontal pipel-l supported on the other side by a rod 45. It preferably extendsacross the road surface under the vehicle at a slight angle, to thedistributing pipe, as indicated in Fig. 2. It is located in front of theoil distributing pipe, and is provided with perforations on its forwardside so as to direct a series of jets of steam on the road surface inadvance of the dis tribution of oil thereon. This steam is projected onthe road with some force, so that it serves to dislodge the loose dustand blow it away from the surface being treated and to one side, it alsodampens the surface and the extent of dampening can be regulated withany degree of nicety by adjusting the valves of the steam system.Another great advan- Gopien of this patent may be obtained for fivecents each, by addressmg the Gommissioner of latents,.

tage of this arrangement is that the road surface is heated by the steaminstead of being cooled, and thus provides for the improved resultshereinbefore mentioned.

While we have illustrated and described a preferred embodiment of theinvention, we are aware that many modifications can be made herein byany person skilled in the art without departing from the scope of theinvention as expressed in the claims. Therefore we do not wish to belimited to all the details of construction herein shown and described,but what we do claim is 1. In a device for applying oils and the like tostreets, the combination with a truck body, of a tank for containing theoil mounted on said truck body and located over it, a pump carried underthe rear of said truck body behind the tank and communicating therewith,a steam supply pipe carried by said truck body and connected directlywith said pump for operating the same, a distributing pipe for the oilcommunicating directly with the discharge from the pump and located atthe rear of the pump under it and extending transversely of the truck, apipe located in front of said distributing pipe and having perforationsin the front thereof, and connections to the latter named pipe from saidsteam supply.

2. In a device for applying oils and the like to streets, thecombination with a sup port having wheels on which it is carried, of atank for containing the oil mounted on said support, a distributingpipe, connections carried by said support between the tank and thedistributing pipe for conducting the oil from the tank to saiddistributing pipe, two valves for controlling the flow of oil throughsaid connections, two steam pipes supported by said support, oneentering said connections between the valves and the other enterin thembetween both valves and the distributing pipe, and a pump comprised insaid connections and disposed at a point between those points at whichthe two steam pipes enter the connections.

In testimony whereof we have hereunto set our hands in the presence oftwo subscribing witnesses.

BERTRAM E. SAVAGE. LOUIS H. MINER.

Witnesses to the signature of B. E. Savage:

T. RoB'r. Fox, C. A. GRIER. Witnesses to the signature of L. H. Miner:

Essnx S. ABBOTT, RALPH W. H001).

Washington, D. G.

